Superheater.



SUPERHJ Specicetiou o' Applicatien filed September 1913.

To all whom t may concern Be it known that'. SAMUEL JAMES HUN- GERroRD,of, 'the city of Winnipeg, in the Province of Manitoba., Canada., haveiu- Vented certain new and useful Impr-evementsin Superhecters,.0f whichthe fciicwing is the' specieetion.

The invention relates to improveuieusiu supcrheaters especiaiy designedfor iustei lation in iocomctive engines und the object of the inventionis to provide au efficient simply constructed superiieuer 'which canreadily be iiistzdied in oceuiei-ire engines 0I" presen?. design, cparicuier eziture ci the. invention residing in the construction whichpermits i1-ne superiieeter pars ie be eus'dy and quickly iustuiled,removed. er 'eced and :also ailows entrance *o Where :i possibi@ euiuigeof s occur.

Further objeces of the inver" provide c superheeter wherein arising fromexpansion and cciurec'mcc' the paris has .been reduced to mi and cleo iorovide a superb/eater in wiich `the superheating tubes ceu lbe readilyau preached and cleaned.

Vith the `above objects in View ile invent-ion consists essensialiy inthe arrangement and construction of parts hereinafter more particularlydescribed und later pointed eut in the appended caims.

' Figure l represen-s longitudinali sectional view through the from ender" c iocomctive boier showing my superhecter iustai'ied. Fig. 2represents a vertical cross sectional vvieuY through the from end of the'locomotive boiler. certain of the auxiliary headers being 'shown in''veriical seccion. Fig. 3f represents a side View of, one of theauxiliaryY headers. represerus a vertical sectioned vieu' thrcugii one.oi ijle auxiijary headers. Fig, 5 represen-2s a deeiied perspective Viewcf a portion si one ci fue superheating tubes. Fig. (i represente aneuiargcd detailed front View of the mein 'ccp header detached, paribeing shown in rerticaisectiou. repreeeiite im 'anim-ged detaiied fromView ci' klee bouton; :uuic header detached, part keine? e'iou'u in veztical section. Fig. r 'presents mi detaiied vericai se Serial No. .1

Secieuai through e portien of the boeni header and e. prtioii of one ofthe feed pipes showing fue joint formed between iiese parte.

in the drmviugs ike chai'ecters cf re ence indicate corresponding parteiu eee-i iigure. i

u. locomotive boiler, die boiler rines.

ecris eil ci2 crdi Y struction, ccing found in iccclr-c..

eer-.i-

zuid `iiey'.T'crm uc pere mieu.

engine 1 ci in any suited@ e wle? cud cerryiug eccoci dispcscd 'icy andcaire ef brac;

le and l5, and. 16 en" which supuf me tcp boite-m .wein headers siedidescribed. l repre-s is a iicrizczieiiy dice mein top header carryingceci. elbow i8 tted Wiii outsisuidiugf ,icc

d fuiii cimiicr baie iie'esa". M

u indie carried bf; 'C 1 "1. i

i9 un has ..e forward, end diereolf' c ai; 1R32 aud iiting luto theadjoining ci che eibow.

he innerveud mg against 'Lne in? to be removed While still maintaininga',

een the thimble and the 'outstanding anges 25 thimbleI and the elbow andpermits the elbow and consequently the main top header tight joint betvitube sheet. V- j The ends of the header bear on the upper pair ofbrackets 14 and 15 and are perinanentl'y secured to the supports 12 and13 by suitably located bolt-s 2l. The said header is provided on .thefront side with a series of openings 22,- these openings being arrangedto permit the dry steam to pass into the saturated steam auxiliaryheader shortly referred to. 'In the present instance there are sii: ofthese openings 22, one. for each saturated steam 'auxiliary header.

f 23 is a bottomv main header Which header is located in amore or lesshorizontal posi-- tion at a point somewhat below the top header and hasthe ends thereof resting on the top oi'f brackets 16 and 17 and fastenedby suitable bolts 23 to the supports 12 and 13. l

The bottom header is` supplied on the forward side With a series ofsimilar `openings 24 adapted to register with the ducts of thesuperheated steam auxiliary headers later described and it .is formedfurther vwith a pair of similar, elbows 25 provided with connectedbybolts 252 to similar outstanding flanges 27 and 2S presented by 'thefeed pipes Q7 and :28, the feed pipe being designed to distribute thesuperheated steam from the bottom header into the cylinders of theengine (not shown). The adjoining faces of the elbows and feed pipe areeone'd out to receive a gasket .26 which forms a particularly effectivesteam tight joint between these parts When the bolts are tightened up.

, 29 represent' similar saturated steam auxiliary headers and 30represent similar' super-heated steam auxiliary headers which headerscarry the superheating coils later 'referred to and are interposedbetween the main top and bottom headers. In the present instance thereare six saturated steam auxiliary headers. rThese auxiliary headers areall constructed in the saine manner and. as shortly described with theexception that those 29 are what might be termed a right and those 30 aleft hand construction, that is, formed complementary to each other.Each auxiliary header provides an interior steam chamba' 32 and issupplied on the inner side with a series of openings 33, 84 and and onthe outer side with a further series of directly opposing sorev threadedopenings 36, 37 and 38, these latter-openings being designed to receiveremovable screw plugs 39. rThey are each fitted With .a duct 40 which isdesigned to register with one or other of the openings in the top orbottom header as the ease may be. A single lug 41 extends from one endof each section While openings 22 and 24 and are coiled out as.

indicated at A u'hile'the adjoining faces of all the auxiliary headersare reamed out as indicated at B at the entrance to the ducts 40.

Joint rings 47 are inserted between the auxiliary and main headers Whichjoint rings are formed on the one side with an abrupt shoulder T.vhirhreceives the auxiliary header and at the other side with a beveled facewhich fits into the cone face A. When the rings are inserted theauxiliaryheaders are fastened to the main headers by studs 4S and 48which pass through suitably located openings lsupplied on the auxiliaryheaders andy into the Walls o the main header.

It is here to be noticed that the adjoining faces of the complementaryauxiliary headers carry projecting tongues 49 and 50 which space thebodies of the headers apart when they are assembled and provide an openspace between them.

51 represent superheating coilsl passing into the boiler flue 3 andhaving their forward ends connected with the auxiliary headers. ln thepresent instance each pair of a Xiliary headers is shown as carryingthree distinct coils. said coils having each an end connected with thesteam chamber of one of the saturated steam auxiliary headers and an endconnected with the steam chamber' of one of the superheated steamauxiliary headers. Accordingly a passage is 'formed for the steamthrough a saturated steam auxi header to a superheated steam auxiliaulheader by 'way of the coils.

With my device installed the dry steam is.

the ducts 40 and the openings 24 to the bottom main header from which itis led to the locomotive cylinders through the elbows 25 and the pipes27 and28.

It will be seen that by forming the aux- ...iliary headers as shown thattheexpansion

